Some people - such as Hillary Clinton - have suggested that Islamist-related terror attacks on U.S. soil are evidence that we're winning the war against radical Islam abroad.

Dr. Sebastian Gorka, however, says that it "absolutely not" the case.

"I look at the last two years and I see the Islamic State fighting a two-front war," Gorka said on "Fox and Friends" this morning. "They're using violence in the region - in Iraq, in Syria, in Libya - to consolidate and expand the territory they hold ... and they are promoting attacks on the soil of the infidel."

He described recent attacks in Paris, Brussels, Nice and Orlando as "guerrilla warfare."

"That's exactly what we've seen in New York and in New Jersey this weekend," Gorka said, adding that a bloody knife attack at a Minnesota mall Saturday evening also falls into this category of "low-cost, high-yield" jihadi violence.

"Anybody who says they're surprised by these attacks doesn't know what they're talking about," Gorka said. "We have seen all of this before: pressure cooker bombs, knife attacks, pipe-bombs. This should surprise nobody who follows national security issues."

House Intelligence Committee Chairman Adam Schiff of California said that "people have suffered enough" because of President Trump and that a real leader would re-open the part of the government that has been shuttered since December.